Home / 18,121.44-27,189.42-8,265.36

Finding the Fourth Proportional to 18,121.44, 27,189.42 and 8,265.36

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Solution

The fourth proportional to 18,121.44, 27,189.42 and 8,265.36 is: 12,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.44 : 27,189.42 = 8,265.36 : x
  2. Step 2: Convert to fraction form
    18,121.44/27,189.42 = 8,265.36/x
  3. Step 3: Cross multiply
    18,121.44x = 27,189.42 × 8,265.36
  4. Step 4: Simplify right side
    18,121.44x = 224,730,344.49
  5. Step 5: Solve for x
    x = 224,730,344.49/18,121.44
  6. Step 6: Final answer
    x = 12,401.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.